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Old 10-19-2018, 11:00 AM   #1
Bildo

 
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TSP PRC EHT Springs

Just a heads up buyers beware. Had a failure of a PRC EHT spring with less than 8k miles on it. Luckily it didn't completely drop the valve. I heard horror stories before about their springs, now I can confirm. These are supposed to be good for around 20k miles, mine were installed with the heads at 7k miles and didn't last to 15k.
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Old 10-19-2018, 11:04 AM   #2
frankwjr


 
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Have you spoken to TSP? Be interestin to hear their take on it.


good luck!


peace
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Old 10-19-2018, 11:14 AM   #3
Bildo

 
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They offer a one year warranty on these parts. I have had these for well over one year. I just wouldn't buy any PRC branded springs ever again. PAC or BTR from now on. I will still do business with TSP for many things as they have always treated me right.
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Old 10-19-2018, 11:39 AM   #4
Bildo

 
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And I am probably ordering PAC replacements from TSP through my Tuner.
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Old 10-19-2018, 06:07 PM   #5
zz430camaro

 
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BTR Platinum springs are all you need, priced right too!
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Old 10-19-2018, 07:07 PM   #6
Bo White


 
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Ive got about 12k on mine. So far so good. I do however never rev my engine past 3k until oil temp is over 150*
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Old 10-19-2018, 10:53 PM   #7
John_C
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I run the TSP VVT 3.2 cam, TSP PAC polished 660's with Ti retainers, TSP 1.72:1 roller rocker arms in TFS GenX 255 heads.

With those rocker arms, my valve lift is almost at 660...

I rev to 6,800 rpm's all the time and during tuning my trans shifts, I have accidentally rev'd even higher.

No issues in over 10k miles.
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Old 10-20-2018, 04:53 AM   #8
Bo White


 
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I shitt at 7200 at the track
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Old 10-20-2018, 07:28 AM   #9
John_C
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Quote:
Originally Posted by Bo White View Post
I shitt at 7200 at the track
What cam do you have that makes power all the way to 7,200 rpm's?

What supporting mods did you do? Oil pump?
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2010 2SS RS A6 781rwhp on E85
Stage 2 ProCharger D1X
Circle D 3400 Triple Disc
Kooks Jet Hot Headers
Kooks Full 3in exhaust
Trick Flow GenX 255's
Polished PAC .660's & Ti-retainers
TSP VVT 3.2 cam kit w/DoD Delete
Smith Bro's Trunnion kit
AEM X-Series OBDII Widebands
FIC ID1300x Injectors
GM ZL1 High Output Fuel Pump
DSX Tuning Flex Sensor
DSX Auxiliary Fuel System
Tim King Stage 4 Max Effort CTSV 6L90
DSS 1 piece aluminum driveshaft
JRE 6L80E / 6L90E Dipstick
NGK Iridium IX spark plugs #7 heat range
Mighty Mouse Camaro 5 Wild w/-12an and Billet Black
HP Tuners VCM Suite
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Old 10-20-2018, 08:41 AM   #10
christianchevell
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Blown and stroked your lucky to not be buying more than new springs, watch out for mechanical overrevs they limit the life of the spring to jack squat. The tougher the spring the more the lift unfortunately the easier the break....Have no idea what your redline is or what...but most springs are only tested to 7k...….ls7 territory
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Old 10-20-2018, 11:30 AM   #11
Bo White


 
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I have TSP 235/248-111 and PRC 260 13* heads
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Old 10-20-2018, 12:33 PM   #12
Bildo

 
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Replacing with PAC springs, TSP has contacted me and offered to make it right as well. I don't blame TSP at all.
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Old 10-20-2018, 02:17 PM   #13
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Im on the same boat now! Debating whether to go pac springs or btr
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Old 10-20-2018, 03:18 PM   #14
zz430camaro

 
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I have a brand new set of springs from Livernois Motorsports you can buy from me. Believe they use PAC springs, PM me if interested, sell them pretty cheap, they were 400 new.

https://www.livernoismotorsports.com/product/LPP811112
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